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A221223 as a simple table

n a(n)
1 3
2 35
3 400
4 4525
5 51025
6 574800
7 6473175
8 72891475
9 820773600
10 9242002325
11 104065684825
12 1171786908400
13 13194399201775
14 148569807813675
15 1672905820612800
16 18837029565221725
17 212106191270112225

[3,35,400,4525,51025,574800,6473175,72891475,
 820773600,9242002325,104065684825,1171786908400,
 13194399201775,148569807813675,1672905820612800,
 18837029565221725,212106191270112225]

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Last modified June 22 01:41 EDT 2024. Contains 373561 sequences. (Running on oeis4.)